题目内容：

When twelve-year-old John Wilson walked into his chemistry class on a rainy day in late October 1931, he had no way of knowing that his life was about to change completely. The class ____ that day was to show how ____ a container of water would bring oxygen bubbles(气泡) to the surface. The container John was about to heat, ____ , was not like the containers students everywhere had used. Someone had been ______ and put the wrong label(标签) on the bottle. And ____ John heated it with a Bunsen burner, the container ______ , sending the liquid flying in all directions. John Wilson came away from it, completely ______.

Wilson spent the next two months in hospital. After he returned home, his parents ______a hard time to find a way to deal with the ____ that had happened to their lives. But Wilson did not ____ the accident as a disaster. He knew he had the rest of his life to live. He learned Braille(盲文) quickly and continued his ____ at the esteemed Worcester College for the disabled. There, he not only ____ as a student but also became an accomplished rower, swimmer, actor, musician, and orator.

Many people, faced with the _____ John Wilson met with, would have _____of their experience. Perhaps they would have considered themselves to be ____ by ill fortune and discouraged in their ____ to do anything significant with their lives. Wilson, however, lost his sight but found a ____. Through his practical action and life attitude, he proved to us ____ that it’s not what happens to us that _____our lives — it’s what we make ______ what happens.

1.A. experiment    B. discussion    C. analysis    D. management

2.A. bringing out    B. turning over    C. heating up    D. picking on

3.A. therefore    B. instead    C. besides    D. however

4.A. light-hearted    B. absent-minded    C. cold-blooded    D. bad-tempered

5.A. as    B. if    C. once    D. though

6.A. leaked    B. exploded    C. collapsed    D. melted

7.A. dumb    B. lame    C. deaf    D. blind

8.A. called for    B. drove off    C. went through    D. depended on

9.A. catastrophe    B. coincidence    C. dilemma    D. drawback

10.A. elect    B. appoint    C. regard    D. recommend

11.A. education    B. occupation    C. contribution    D. recovery

12.A. survived    B. shone    C. competed    D. registered

13.A. discrimination    B. resistance    C. circumstances    D. uncertainties

14.A. dreamed    B. thought    C. approved    D. complained

15.A. criticized    B. motivated    C. surrounded    D. interrupted

16.A. preferences    B. requirements    C. failures    D. attempts

17.A. bridge    B. vision    C. reward    D. cure

18.A. dramatically    B. occasionally    C. abruptly    D. roughly

19.A. limits    B. predicts    C. determines    D. replaces

20.A. of    B. from    C. for    D. up